There are several advantages to being on a maintenance plan, beginning with the most obvious, it's cheaper! Because the car is detailed on a regular basis, it does not require the same amount of product, effort, and cleaning that a one-time customer's car requires, and it is for this reason that a maintenance plan does not cost the same amount as a full detail. One thing that I like to tell all of my customers is "Maintenance is better than the cure." This is probably very self-explanatory, but most people leave their cars to collect so much dirt that by the time I show up, it cannot be restored to perfection, or "Like New" condition. Just like a regular checkup at the doctor's office keeps you from getting sick, a regular detail on a car will keep it in the like new, or showroom condition because dirt is not allowed to sit for an extended period of time, and doesn't become a larger issue in regards to the appearance of the vehicle. Just like anything else in life, regularly cleaning your vehicle's interior and exterior will inevitably extend the life of the car, and not to mention, will probably increase its value if you decide to trade it in.